Pot users are absent from work (and life) more, injured more often on the job and bad decisions are more common. Regular pot use interferes with the pleasure center of the brain until nothing but pot gives pleasure. The science will be ignored by liberals and libertarian-conservatives alike. You can lose 8-9 IQ points by using it once a week over time. Trust me folks, when you're my age, you'll need all those points. It is sickening to see state legislators drooling over the prospect of taxing yet another practice that damages citizens.